Critical9.1Vendor: HighRed Hat Linux

Critical [CVE-2026-29186] TechDocs Mkdocs configuration key enables arbitrary code execution

This critical-severity Red Hat Linux advisory covers CVE-2026-29186 affecting Red Hat Developer Hub 1.8, Red Hat Developer Hub 1.9.

CVE-2026-29186 Published Mar 7, 2026

CVE-2026-29186

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

TechDocs Mkdocs configuration key enables arbitrary code execution. Red Hat rates this important (CVSS 9.1).

Weakness: CWE-791. Affected package(s): rhdh/rhdh-hub-rhel9:1777903262, rhdh/rhdh-hub-rhel9:1776784286.

Resolved in Red Hat advisory RHSA-2026:13826 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Developer Hub 1.8; Red Hat Developer Hub 1.9.

Affected versions

rhdh/rhdh-hub-rhel9:1777903262
rhdh/rhdh-hub-rhel9:1776784286

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:13826

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:13826 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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